Question: What award did Ilya Mehnikov win where the champ was Louis Agassoz?
Paraphrase: What was the award Ilya Mehnikov won when Louis Agassoz was the champ?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q172254 wdt:P166 ?answer . ?answer wdt:P1346 wd:Q122972}
Answer: Copley Medal